EP0231532B1 - A lock having an external bolt unlocking device - Google Patents
A lock having an external bolt unlocking device Download PDFInfo
- Publication number
- EP0231532B1 EP0231532B1 EP86200125A EP86200125A EP0231532B1 EP 0231532 B1 EP0231532 B1 EP 0231532B1 EP 86200125 A EP86200125 A EP 86200125A EP 86200125 A EP86200125 A EP 86200125A EP 0231532 B1 EP0231532 B1 EP 0231532B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tripper
- bolt
- lock
- tumblers
- day
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
- E05B65/10—Locks or fastenings for special use for panic or emergency doors
- E05B65/104—Locks or fastenings for special use for panic or emergency doors actuated in response to heat, e.g. with fusible element, bimetal, memory shape or swelling material
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
- E05B47/0607—Controlling mechanically-operated bolts by electro-magnetically-operated detents the detent moving pivotally or rotatively
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
- E05B47/0006—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets having a non-movable core; with permanent magnet
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B59/00—Locks with latches separate from the lock-bolts or with a plurality of latches or lock-bolts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/08—Bolts
- Y10T292/0801—Multiple
- Y10T292/0834—Sliding
- Y10T292/0836—Operating means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/08—Bolts
- Y10T292/0801—Multiple
- Y10T292/0834—Sliding
- Y10T292/0836—Operating means
- Y10T292/0844—Lever
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/08—Bolts
- Y10T292/096—Sliding
- Y10T292/0969—Spring projected
- Y10T292/097—Operating means
- Y10T292/0994—Lever
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/08—Bolts
- Y10T292/096—Sliding
- Y10T292/0999—Spring retracted
- Y10T292/1003—Swinging catch
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/50—Special application
- Y10T70/5093—For closures
- Y10T70/5155—Door
- Y10T70/5199—Swinging door
- Y10T70/5226—Combined dead bolt and latching bolt
Definitions
- the present invention relates to a lock comprising a day bolt and a night bolt, each slidable between an extended locking position and a retracted releasing position, said day bolt being urged by a spring to the extended locking position and being retractable by a handle-operated tumbler to the releasing position, said night bolt being spring-loaded to the retracted releasing position and being lockable in both the locking and the releasing position by a locking mechanism pivotable by a key bit or by the nose of a lock cylinder against a spring biasing force to a position wherein the night bolt is slidable, and further including an actuating member for the locking mechanism operable from outside the lock.
- the actuating member for the locking mechanism of the night bolt is a cam movable by a rod adapted for up and down movement from a position wherein the cam does not influence the locking mechanism and a position wherein the locking mechanism is swivelled out of engagement with the night bolt so that the night bolt is pushed to the releasing position by the biasing spring.
- the locking mechanism can be swivelled out of the night-bolt-locking position by turning an inserted key, by means of the key bit or the nose of a cylinder rotated by the key, and the night bolt is pushed to the retracted releasing position by the associated biasing spring.
- a second cam is attached to the rod of the actuating member, which cam, upon activation of the acuating member, shifts the night bolt to the retracted releasing position by means of a toggle lever against the force of a biasing spring.
- a lock of the above cited type wherein the locking mechanism is designed as a packet of tumblers through which extends a locking pin projecting laterally from the night bolt and the actuating member for the locking mechanism is a tripper having a cam acting on the tumblers and having an arm projecting from the lock housing, an electric magnet that, when energized, acts on said tripper arm to hold the tripper in a position wherein the tripper does not act on the tumblers, said tripper being spring-biased in a direction wherein the tripper loads the tumblers to the night-bolt-releasing position, all this without influencing the day bolt.
- the tripper according to the present invention with its electromagnetic actuation can be mounted in a simple manner in existing locks without requiring essential structural adjustments.
- the lock functions normally, i.e. the night bolt has to be released by key actuation and the day bolt must be actuated by a door handle or knob.
- the tripper may further be fitted with a resetting arm which, in the position wherein the tumblers have been swivelled, lies beyond reach, and in the position wherein the tumblers are not influenced by the tripper, lies within reach of a member connected to the day-bolt-handle-operated tumbler in such a manner that a movement of the day-bolt handle is sufficient to return the lever to its inoperative position fixed by the electric magnet.
- a simple movement of the day-bolt handle is thus sufficient to move the tripper to its inoperative position fixed by the electric magnet.
- adavanta- geously use can be made of the presence of a slitted strap connecting the day-bolt-handle-operated tumbler to an associated handle returning spring.
- the resetting arm of the tripper can, in fact, project through the slit in the strap into a region wherein this is not influenced by handle movements and hence strap movements, while in the tumbler-tripping position of the tripper, the arm is near the strap end distal from the day-bolt tumbler.
- the resetting arm Upon actuating of the handle, the resetting arm is taken along until the other arm of the tripper, projecting from the lock housing, comes within the reach of the electric magnet.
- German patent 223 958 discloses a lock having a day bolt and a night bolt, said night bolt being operable electromagnetically. That is not, however, a lock that can also be actuated with a normal key.
- the lock comprises a day bolt 1 and a night bolt 2, both depicted in the locking position projecting from the lock plate.
- the lock housing 4 contains the lock mechanism comprising a tumbler 5 for a day-bolt handle, not shown.
- the tumbler is connected to a return spring 7 through slitted strap 6.
- Acting on bolt 1 is a spring 8 loading the same to the extended locking position.
- the night bolt 2 comprises a laterally projecting locking pin 9 and a recess 10.
- a nose 13 of a cylinder 11 with key channel 12 is adapted to move night bolt 2 to and for by engagement in the recess 10, for which purpose, however, the nose 13 should first swivel away a packet of tumblers 14 about a common . pin 15, in the manner shown in Fig. 2, so that the locking pin 9 projecting through a recess 16 into the tumblers 14 is released from the locked position behind a cam 17 shown in Fig. 1.
- the night bolt 2 is therefore locked also in the retracted, releasing position.
- Fig. 1 also shows members 19, 19a enabling the day bolt to be released when the night bolt is in the released state, by once again turning the key clockwise. Said members are not relevant for the present invention and hence have been omitted from Figs. 2 and 3.
- a tripper 20 including a lever swivelling about the pin 15 and having arms 21, 22, with arm 21 projecting from the lock housing 4.
- Arms 21, 22 of tripper 20 are situated at a level different from that of tumblers 14, so that, as shown in Fig. 2, these can swivel independently of the tripper 20.
- the tripper is fitted with a cam 23 extending perpendicular to the plane of drawing adjacent tumblers 14, which cam 23 drags along the tumblers 14 upon a swivelling movement of tripper 20. This situation is shown in Fig. 3.
- tripper 20 The swivelling movements of tripper 20 are controlled on the one hand by a spring 24, which tends to swivel the tripper 20 to the position depicted in Fig. 3, and on the other hand by an external influence or force on the arm 21, which force, in the embodiment shown, is exerted by an electric magnet 25.
- a slightly tiltable block 26 on arm 21 ensures maximum contact with electric magnet 25.
- the magnet force should be greater than the force of the spring 24 in order to maintain the tripper in the position shown in Figs. 1 and 2, wherein it does not influence the tumblers 14.
- spring 24 swivels tripper 20 to the position shown in Fig. 3.
- arm 22 is in the vicinity of the strap end at the side of the handle return spring 7 so that upon movement of the tumbler 5, the arm 22 is taken along by strap 6 to the position shown in Figs. 1 and 2, wherein the tumbler tripper can be fixed by the electric magnet.
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Lock And Its Accessories (AREA)
- Input From Keyboards Or The Like (AREA)
Description
- The present invention relates to a lock comprising a day bolt and a night bolt, each slidable between an extended locking position and a retracted releasing position, said day bolt being urged by a spring to the extended locking position and being retractable by a handle-operated tumbler to the releasing position, said night bolt being spring-loaded to the retracted releasing position and being lockable in both the locking and the releasing position by a locking mechanism pivotable by a key bit or by the nose of a lock cylinder against a spring biasing force to a position wherein the night bolt is slidable, and further including an actuating member for the locking mechanism operable from outside the lock.
- In a similar lock disclosed in German patent 523 169, the actuating member for the locking mechanism of the night bolt is a cam movable by a rod adapted for up and down movement from a position wherein the cam does not influence the locking mechanism and a position wherein the locking mechanism is swivelled out of engagement with the night bolt so that the night bolt is pushed to the releasing position by the biasing spring. In the position wherein the locking mechanism is not influenced by the cam, the locking mechanism can be swivelled out of the night-bolt-locking position by turning an inserted key, by means of the key bit or the nose of a cylinder rotated by the key, and the night bolt is pushed to the retracted releasing position by the associated biasing spring. In the prior art lock, however, a second cam is attached to the rod of the actuating member, which cam, upon activation of the acuating member, shifts the night bolt to the retracted releasing position by means of a toggle lever against the force of a biasing spring.
- Accordingly, in the prior art lock, operation of the actuating member for the locking mechanism of the night results in both the night bolt and the day bolt being pushed simultaneously to the retracted releasing position.
- This has the serious drawback that, in the case of fire in a building, e.g. a hotel; a nursing home or a psychiatric institution, when all doors are to be unlocked from a central point to allow easy access to all places to the fire brigade and to give confined persons an opportunity of getting out, all doors may be blown open by air movements so that the fire can propagate rapidly.
- It is therefore an object of the present invention to provide a lock which does not have the above drawback while preserving the advantages of prior locks.
- To this effect, according to the present invention, there is provided a lock of the above cited type wherein the locking mechanism is designed as a packet of tumblers through which extends a locking pin projecting laterally from the night bolt and the actuating member for the locking mechanism is a tripper having a cam acting on the tumblers and having an arm projecting from the lock housing, an electric magnet that, when energized, acts on said tripper arm to hold the tripper in a position wherein the tripper does not act on the tumblers, said tripper being spring-biased in a direction wherein the tripper loads the tumblers to the night-bolt-releasing position, all this without influencing the day bolt.
- The tripper according to the present invention with its electromagnetic actuation can be mounted in a simple manner in existing locks without requiring essential structural adjustments.
- As long as the electric magnet is energized and the tripper arm of the tripper is retained by the energized electric magnet the lock functions normally, i.e. the night bolt has to be released by key actuation and the day bolt must be actuated by a door handle or knob.
- For the purpose of a central unlocking of the night bolts of all relevant locks, only the current supply to all electric magnets need be interrupted (O-current state) so that the electric magnet releases the tripper arm of the tripper and this is swivelled by the associated biasing spring to the position wherein it swivels the tumblers and the night bolt is unlocked. A biasing spring presses the night bolt to the retracted releasing position, but the door remains closed in the normal manner. For opening the door, the day bolt has to be released, which is done in the normal manner by means of the door knob. It is observed that the interruption of current supply to the electric magnet of a lock can also be effected by the turning-out of a safety fuse as soon as, in the case of fire, the temperature is high enough at the location in question.
- When, in any of the situations described, the tumblers have been swivelled by the tripper to the night-bolt-releasing position, then, as soon as the electric magnet has been re-energized, the tripper should be capable of being returned, against the action of the tripper-biasing spring, to the position wherein the tripper no longer influences the tumblers.
- To this effect, in a further embodiment of the present invention, the tripper may further be fitted with a resetting arm which, in the position wherein the tumblers have been swivelled, lies beyond reach, and in the position wherein the tumblers are not influenced by the tripper, lies within reach of a member connected to the day-bolt-handle-operated tumbler in such a manner that a movement of the day-bolt handle is sufficient to return the lever to its inoperative position fixed by the electric magnet. In the lock according to the present invention, a simple movement of the day-bolt handle is thus sufficient to move the tripper to its inoperative position fixed by the electric magnet.
- According to the present invention, adavanta- geously, use can be made of the presence of a slitted strap connecting the day-bolt-handle-operated tumbler to an associated handle returning spring. The resetting arm of the tripper can, in fact, project through the slit in the strap into a region wherein this is not influenced by handle movements and hence strap movements, while in the tumbler-tripping position of the tripper, the arm is near the strap end distal from the day-bolt tumbler. Upon actuating of the handle, the resetting arm is taken along until the other arm of the tripper, projecting from the lock housing, comes within the reach of the electric magnet.
- It is observed that German patent 223 958 discloses a lock having a day bolt and a night bolt, said night bolt being operable electromagnetically. That is not, however, a lock that can also be actuated with a normal key.
- One embodiment of the lock with external bolt unlocking device will now be described, by way of example, with reference to the accompanying drawings, in which:
- Fig. 1 diagrammatically shows the interior of a mortise lock;
- Fig. 2 shows the lock shown in Fig. 1 during normal use, omitting parts irrelevant for the present invention; and
- Fig. 3 shows the lock shown in Fig. 2 with the tumbler swivelled by the tripper.
- As shown in the drawings, the lock comprises a
day bolt 1 and anight bolt 2, both depicted in the locking position projecting from the lock plate. The lock housing 4 contains the lock mechanism comprising atumbler 5 for a day-bolt handle, not shown. The tumbler is connected to areturn spring 7 through slittedstrap 6. Acting onbolt 1 is aspring 8 loading the same to the extended locking position. - The
night bolt 2 comprises a laterally projectinglocking pin 9 and arecess 10. Anose 13 of acylinder 11 withkey channel 12 is adapted to movenight bolt 2 to and for by engagement in therecess 10, for which purpose, however, thenose 13 should first swivel away a packet oftumblers 14 about a common .pin 15, in the manner shown in Fig. 2, so that thelocking pin 9 projecting through arecess 16 into thetumblers 14 is released from the locked position behind acam 17 shown in Fig. 1. Upon further clockwise rotation of thenose 13 from the position shown in Fig. 2, this is released from the tumblers, which are then swivelled back bytumbler springs 18 to the position shown in Fig. 1, wherein thelocking pin 9 is again locked, but now at the other side ofcam 17. Thenight bolt 2 is therefore locked also in the retracted, releasing position. - Fig. 1 also shows
members 19, 19a enabling the day bolt to be released when the night bolt is in the released state, by once again turning the key clockwise. Said members are not relevant for the present invention and hence have been omitted from Figs. 2 and 3. - One of the members which, according to the present invention are added to the lock described so far which as such is well known, is a
tripper 20 including a lever swivelling about thepin 15 and havingarms arm 21 projecting from the lock housing 4. -
Arms tripper 20 are situated at a level different from that oftumblers 14, so that, as shown in Fig. 2, these can swivel independently of thetripper 20. The tripper, however, is fitted with acam 23 extending perpendicular to the plane of drawingadjacent tumblers 14, which cam 23 drags along thetumblers 14 upon a swivelling movement oftripper 20. This situation is shown in Fig. 3. - The swivelling movements of
tripper 20 are controlled on the one hand by aspring 24, which tends to swivel thetripper 20 to the position depicted in Fig. 3, and on the other hand by an external influence or force on thearm 21, which force, in the embodiment shown, is exerted by anelectric magnet 25. A slightlytiltable block 26 onarm 21 ensures maximum contact withelectric magnet 25. The magnet force should be greater than the force of thespring 24 in order to maintain the tripper in the position shown in Figs. 1 and 2, wherein it does not influence thetumblers 14. When the magnet force drops out either because the current supply is deliberately interrupted or because the circumstances at the location in question eliminate the magnet energization,spring 24 swivels tripper 20 to the position shown in Fig. 3. - In case, starting from the situation shown in Fig. 3, the tripper is to be returned to the position shown In Figs. 1 and 2, then energization of the
electric magnet 25 in the embodiment shown will not be sufficient, but thearm 21 has to be positively moved against the action ofspring 24 towards theelectric magnet 25. For this purpose, theother arm 22 functions as a resetting means for the tripper.Arm 22 extends through the slit of thestrap 6 connecting the day-bolt-handle-operatedtumbler 5 to thehandle return spring 7 in such a manner thattumbler 5 can perform the movements necessary for normal handle displacements without influencingarm 22. In the position shown in Fig. 3, however,arm 22 is in the vicinity of the strap end at the side of thehandle return spring 7 so that upon movement of thetumbler 5, thearm 22 is taken along bystrap 6 to the position shown in Figs. 1 and 2, wherein the tumbler tripper can be fixed by the electric magnet. - Consequently, only a single handle actuation is necessary for resetting the
tripper 20 from the position shown in Fig. 3 to the position shown in Figs. 1 and 2.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8686200125T DE3668342D1 (en) | 1986-01-29 | 1986-01-29 | LOCK WITH EXTERNAL BOLT RELEASE DEVICE. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8403891A NL191126C (en) | 1984-12-12 | 1984-12-12 | Lock with external bolt release. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0231532A1 EP0231532A1 (en) | 1987-08-12 |
EP0231532B1 true EP0231532B1 (en) | 1990-01-17 |
Family
ID=19844949
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86200125A Expired - Lifetime EP0231532B1 (en) | 1984-12-12 | 1986-01-29 | A lock having an external bolt unlocking device |
Country Status (3)
Country | Link |
---|---|
US (1) | US4643006A (en) |
EP (1) | EP0231532B1 (en) |
NL (1) | NL191126C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2423414A1 (en) | 2010-08-30 | 2012-02-29 | Brondool B.V. | Lock system and building locking system |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0353321B1 (en) * | 1988-08-02 | 1992-01-29 | Mauer GmbH | Electrically controlled lock-dogging device |
GB2225052A (en) * | 1988-10-25 | 1990-05-23 | Bayley Bryan | Locking mechanism |
ATE105363T1 (en) * | 1989-12-01 | 1994-05-15 | Mauer Gmbh | ELECTROMAGNETICALLY CONTROLLED SAFE LOCK. |
EP1279786A3 (en) * | 2001-07-24 | 2004-03-17 | Steinbach & Vollmann GmbH & Co. KG | Lock |
EP2313587B1 (en) * | 2008-06-27 | 2018-08-08 | Intermetro Industries Corporation | Improved lock mechanism for fixing a slide bar in either of two positions |
EP2390441B8 (en) | 2010-05-28 | 2014-02-26 | Brondool B.V. | Lock system |
WO2014163876A1 (en) | 2013-03-13 | 2014-10-09 | Kwikset Corporation | Interconnected locking system |
JP2015206249A (en) * | 2014-04-23 | 2015-11-19 | 美和ロック株式会社 | Latch lock for building |
AU2016255582A1 (en) | 2015-04-30 | 2017-09-28 | Bryan Michael Risi | Actuating assembly for a latching system |
US10822841B2 (en) * | 2016-08-24 | 2020-11-03 | Accurate Lock & Hardware Co. Llc | Door latch with delayed return mechanism |
CN107956320A (en) * | 2017-11-28 | 2018-04-24 | 中山市普鑫智能家居科技有限公司 | A kind of magnetic key operated lock |
CN113700392A (en) * | 2020-05-21 | 2021-11-26 | 杭州萤石软件有限公司 | Lock set |
CN115253109B (en) * | 2022-07-27 | 2023-05-12 | 无锡广盈集团有限公司 | Safety rope-distributing hook, safety device and use method of safety device |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE223957C (en) * | ||||
DE93669C (en) * | ||||
DE566075C (en) * | 1932-12-12 | Tuerschloss Schluessel Und Bes | Chubb lock with an interchangeable rod that can be rotated on a pin of the lock bolt | |
DE523169C (en) * | 1931-04-20 | Ed Niederdrenk Kom Ges | Door lock | |
US1052052A (en) * | 1911-05-25 | 1913-02-04 | Paul Guenther | Lock. |
DE433321C (en) * | 1923-08-31 | 1926-09-01 | Internationales Handelsbuero F | Electric lock security |
US1649424A (en) * | 1926-10-18 | 1927-11-15 | Tirone Charles | Door lock |
DE503560C (en) * | 1928-03-18 | 1930-07-24 | Alfred Zumkeller | Electric lock with two-part latch |
US4021065A (en) * | 1975-07-08 | 1977-05-03 | Geringer Arthur V | Electric lock |
DE2643231C2 (en) * | 1976-09-25 | 1984-10-11 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Door lock |
-
1984
- 1984-12-12 NL NL8403891A patent/NL191126C/en not_active IP Right Cessation
-
1986
- 1986-01-29 EP EP86200125A patent/EP0231532B1/en not_active Expired - Lifetime
- 1986-02-04 US US06/826,141 patent/US4643006A/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2423414A1 (en) | 2010-08-30 | 2012-02-29 | Brondool B.V. | Lock system and building locking system |
Also Published As
Publication number | Publication date |
---|---|
NL8403891A (en) | 1986-07-16 |
EP0231532A1 (en) | 1987-08-12 |
NL191126B (en) | 1994-09-01 |
US4643006A (en) | 1987-02-17 |
NL191126C (en) | 1995-02-01 |
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